This Impact crusher series is optimized after adopting domestic and foreign technique.It can process granite,basalt,limestone,etc,which the granularity is not bigger than 120-300 mm and crushing compression strength is not more than 320mp.It features high crushing scale,high crushing efficiency,and it is convenient for maintenance.This cubeshaped fineness product is the first-class device used in high grade road surface,railway,water conservancy and eledtrictiy industry.Easy for repairing&maintenance.For the mobile joint stone crusher,its mobility is good,large and medium repair can be checked directly into the repair shop.Compared with the on-site repair,has high repair quality ,low repair cost advantages.You also can build professional repair factory in the equipment-concentrated area or departments. Simplified aggregate production processes. Mobile joint Crusher can move forward together with the mining face. Because the distance between the working face with equipment is very near,can use the loader directly to feed material,or using short-range mobile belt conveyor to simplify the transport link from the mining field to equipment.Crusher before the start of the preparatory work: First you should check and tighten the main bearings and connecting rod bearings and other components lining part of all connections, check the foundation bolts are tightened to check and adjust the wedge in the fixed fastening piece, check the spring and the drive belt tension, but also check the flywheel fixed key, etc., and eliminate the identified problems. At the same time, we must check the lubrication system and bearing lubrication, and check the lubrication crusher thrust plate and moving jaw mandrel cup with oil if there is oil. Pressure oil lubrication, oil pump must be switched on and pay attention to check current situation. Check the drive belt is good; that there is oil on the belt or pulley, you should immediately wipe off. Also check protective devices is good....